<script setup>

import { getCategoryFilterAPI, getSubCategoryAPI } from '@/apis/category';
import {onMounted, ref} from 'vue'
import { useRoute} from 'vue-router'
import GoodsItem from '../Home/components/GoodsItem.vue';

// 获取面包屑导航数据
const route = useRoute()
const filterData = ref([])
const getFilterData = async () => {
  const res = await getCategoryFilterAPI(route.params.id)
  filterData.value = res.result
}
onMounted(() => getFilterData())

// 获取基础列表数据渲染
const goodList = ref([])
const reqData = ref({
  categoryId: route.params.id,
  page: 1,
  pageSize: 20,
  sortField: 'publishTime'
})
const getGoodList = async () => {
  const res = await getSubCategoryAPI(reqData.value)
  // console.log(res);
  goodList.value = res.result.items
  // console.log(goodList);
}
onMounted(() => getGoodList())

// tab切换回调
const tabChange = () => {
  console.log('tab切换了', reqData.value.sortField);
  reqData.value.page = 1
  getGoodList()
}

// 无限加载实现
const disabled = ref(false)
const load = async ()=>{
  // console.log('加载更多数据');
  // 获取下一页的数据
  reqData.value.page++
  const res = await getSubCategoryAPI(reqData.value)
  goodList.value = [...goodList.value, ...res.result.items]

  // 加载完毕，停止监听
  if (res.result.items.length === 0) {
    disabled.value = true
  }
  
}


</script>

<template>
  <div class="container">
    <!-- 面包屑 -->
    <div class="bread-container">
      <el-breadcrumb separator=">">
        <el-breadcrumb-item :to="{path: '/'}">
          首页
        </el-breadcrumb-item>
        <el-breadcrumb-item :to="{path: `/category/${filterData.parentId}`}">
          {{ filterData.parentName }}
        </el-breadcrumb-item>
        <el-breadcrumb-item>
           {{ filterData.name }}
        </el-breadcrumb-item>
      </el-breadcrumb>
    </div>

    <div class="sub-container">
      <el-tabs v-model="reqData.sortField" @tab-change="tabChange">
        <el-tab-pane label="最新商品" name="publishTime"></el-tab-pane>
        <el-tab-pane label="最新人气" name="orderNum"></el-tab-pane>
        <el-tab-pane label="评论最多" name="evaluateNum"></el-tab-pane>
      </el-tabs>

      <div class="body" v-infinite-scroll="load" :infinite-scroll-disabled="disabled">
        <!-- 商品列表 -->
        <GoodsItem v-for="goods in goodList" :goods="goods" :key="goods.id" />
      </div>
    </div>


  </div>
</template>

<style lang="scss" scoped>
.bread-container {
  padding: 25px 0;
  color: #666;
}

.sub-container {
  padding: 20px 10px;
  background-color: #fff;

  .body {
    display: flex;
    flex-wrap: wrap;
    padding: 0 10px;
  }

  // .goods-item {
  //   display: block;
  //   width: 220px;
  //   margin-right: 20px;
  //   padding: 20px 30px;
  //   text-align: center;

  //   img {
  //     width: 160px;
  //     height: 160px;
  //   }

  //   p {
  //     padding-top: 10px;
  //   }

  //   .name {
  //     font-size: 16px;
  //   }

  //   .desc {
  //     color: #999;
  //     height: 29px;
  //   }

  //   .price {
  //     color: $priceColor;
  //     font-size: 20px;
  //   }
  // }

  // .pagination-container {
  //   margin-top: 20px;
  //   display: flex;
  //   justify-content: center;
  // }
}
</style>